Zobrazeno 1 - 10
of 40 757
pro vyhledávání: '"Ryan, M. A."'
Autor:
Goncalves, Francisco M. F. R., Bena, Ryan M., Matveev, Konstantin I., Perez-Arancibia, Nestor O.
We present a switching scheme, which uses both the attitude-error quaternion (AEQ) and the angular-velocity error, for controlling the rotational degrees of freedom of an uncrewed aerial vehicle (UAV) during flight. In this approach, the proposed con
Externí odkaz:
http://arxiv.org/abs/2410.12054
Autor:
Richardson, Noel D., Schaefer, Gail H., Eldridge, Jan J., Spejcher, Rebecca, Holdsworth, Amanda, Lau, Ryan M., Monnier, John D., Moffat, Anthony F. J., Weigelt, Gerd, Williams, Peredur M., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Chhabra, Sorabh, Codron, Isabelle, Ennis, Jacob, Gardner, Tyler, Gutierrez, Mayra, Ibrahim, Noura, Labdon, Aaron, Lanthermann, Cyprien, Setterholm, Benjamin R.
Classical Wolf-Rayet stars are the descendants of massive OB stars that have lost their hydrogen envelopes and are burning helium in their cores prior to exploding as type Ib/c supernovae. The mechanisms for losing their hydrogen envelopes are either
Externí odkaz:
http://arxiv.org/abs/2410.09259
Autor:
Hill, Ryan M., Rivero, Gonzalo Reina, Tyler, Ashley J., Schofield, Holly, Doyle, Cody, Osborne, James, Bobela, David, Rier, Lukas, Gibson, Joseph, Tanner, Zoe, Boto, Elena, Bowtell, Richard, Brookes, Matthew J., Shah, Vishal, Holmes, Niall
Optically pumped magnetometers (OPMs) are compact and lightweight sensors that can measure magnetic fields generated by current flow in neuronal assemblies in the brain. Such sensors enable construction of magnetoencephalography (MEG) instrumentation
Externí odkaz:
http://arxiv.org/abs/2410.08718
Autor:
Aronson, Ryan M., Tomin, Pavel, Castelletto, Nicola, Hamon, François P., White, J. A., Tchelepi, Hamdi A.
We study in detail the pressure stabilizing effects of the non-iterated fixed-stress splitting in poromechanical problems which are nearly undrained and incompressible. When applied in conjunction with a spatial discretization which does not satisfy
Externí odkaz:
http://arxiv.org/abs/2409.16257
Autor:
Niwano, Masafumi, Fausnaugh, Michael M., Lau, Ryan M., De, Kishalay, Soria, Roberto, Ricker, George R., Vanderspek, Roland, Ashley, Michael C. B., Earley, Nicholas, Hankins, Matthew J., Kasliwal, Mansi M., Moore, Anna M., Soon, Jamie, Travouillon, Tony, Sasada, Mahito, Takahashi, Ichiro, Yatsu, Yoichi, Kawai, Nobuyuki
The mechanism of X-ray outbursts in Be X-ray binaries remains a mystery, and understanding their circumstellar disks is crucial for a solution of the mass-transfer problem. In particular, it is important to identify the Be star activities (e.g., puls
Externí odkaz:
http://arxiv.org/abs/2409.09581
Autor:
Rivera, Yeimy J., Badman, Samuel T., Stevens, Michael L., Raines, Jim M., Owen, Christopher J., Paulson, Kristoff, Niembro, Tatiana, Livi, Stefano A., Lepri, Susan T., Landi, Enrico, Halekas, Jasper S., Ervin, Tamar, Dewey, Ryan M., Coburn, Jesse T., Bale, Stuart D., Alterman, B. L.
Since Parker Solar Probe's (Parker's) first perihelion pass at the Sun, large amplitude Alfv\'en waves grouped in patches have been observed near the Sun throughout the mission. Several formation processes for these magnetic switchback patches have b
Externí odkaz:
http://arxiv.org/abs/2409.03645
Autor:
Wollman, Emma E., Allmaras, Jason P., Beyer, Andrew D., Korzh, Boris, Runyan, Marcus C., Narváez, Lautaro, Farr, William H., Marsili, Francesco, Briggs, Ryan M., Miles, Gregory J., Shaw, Matthew D.
We report on a free-space-coupled superconducting nanowire single-photon detector array developed for NASA's Deep Space Optical Communications project (DSOC). The array serves as the downlink detector for DSOC's primary ground receiver terminal locat
Externí odkaz:
http://arxiv.org/abs/2409.02356
We present a modified approach to laser optical-feedback cavity-enhanced absorption spectroscopy. The technique involves continuously scanning the length of a high-finesse cavity to periodically lock a diode laser to the cavity resonance, resulting i
Externí odkaz:
http://arxiv.org/abs/2409.00309
Autor:
Rivera, Yeimy J., Badman, Samuel T., Stevens, Michael L., Verniero, Jaye L., Stawarz, Julia E., Shi, Chen, Raines, Jim M., Paulson, Kristoff W., Owen, Christopher J., Niembro, Tatiana, Louarn, Philippe, Livi, Stefano A., Lepri, Susan T., Kasper, Justin C., Horbury, Timothy S., Halekas, Jasper S., Dewey, Ryan M., De Marco, Rossana, Bale, Stuart D.
Publikováno v:
Science, 385, 962-966 (2024)
After leaving the Sun's corona, the solar wind continues to accelerate and cools, but more slowly than expected for a freely expanding adiabatic gas. We use in situ measurements from the Parker Solar Probe and Solar Orbiter spacecrafts to investigate
Externí odkaz:
http://arxiv.org/abs/2409.00267
Autor:
Yasui, Chikako, Izumi, Natsuko, Saito, Masao, Lau, Ryan M., Kobayashi, Naoto, Ressler, Michael E.
We present the substellar mass function of star-forming clusters ($\simeq$0.1 Myr old) in a low-metallicity environment ($\simeq$$-$0.7 dex). We performed deep JWST/NIRCam and MIRI imaging of two star-forming clusters in Digel Cloud 2, a star-forming
Externí odkaz:
http://arxiv.org/abs/2408.15440